vue-element-plus-admin/src/pages/index/views/table-demo/table-expanded/index.vue

<template>
  <div>
    <com-table :columns="columns" :data-source="data">
      <template #action>
        <a>Delete</a>
      </template>
      <template #expandedRowRender="{ record }">
        <p style="margin: 0">
          {{ record.description }}
        </p>
      </template>
    </com-table>
  </div>
</template>

<script lang="ts">
import { defineComponent } from 'vue'
import ComTable from '_c/Table'

const columns = [
  { title: 'Name', dataIndex: 'name', key: 'name' },
  { title: 'Age', dataIndex: 'age', key: 'age' },
  { title: 'Address', dataIndex: 'address', key: 'address' },
  { title: 'Action', dataIndex: '', key: 'x', slots: { customRender: 'action' }}
]

const data = [
  {
    key: 1,
    name: 'John Brown',
    age: 32,
    address: 'New York No. 1 Lake Park',
    description: 'My name is John Brown, I am 32 years old, living in New York No. 1 Lake Park.'
  },
  {
    key: 2,
    name: 'Jim Green',
    age: 42,
    address: 'London No. 1 Lake Park',
    description: 'My name is Jim Green, I am 42 years old, living in London No. 1 Lake Park.'
  },
  {
    key: 3,
    name: 'Joe Black',
    age: 32,
    address: 'Sidney No. 1 Lake Park',
    description: 'My name is Joe Black, I am 32 years old, living in Sidney No. 1 Lake Park.'
  }
]

export default defineComponent({
  // name: 'TableExpanded',
  components: {
    ComTable
  },
  setup() {
    return {
      columns,
      data
    }
  }
})
</script>

<style>
</style>